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A013924 Number of labeled connected graphs with n nodes and 2 cutpoints. 0
12, 180, 4560, 211680, 17186624, 2416430016, 597615868800, 266262716016000, 218583901063537152 (list; graph; refs; listen; history; internal format)
OFFSET

4,1

REFERENCES

S. Selkow, The enumeration of labeled graphs by number of cut-points, Discr. Math. 185 (1998), 183-191.

CROSSREFS

Sequence in context: A000515 A051609 A001814 * A145560 A166773 A202632

Adjacent sequences:  A013921 A013922 A013923 * A013925 A013926 A013927

KEYWORD

nonn,changed

AUTHOR

Stanley Selkow (sms(AT)owl.WPI.EDU)

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Last modified February 14 22:22 EST 2012. Contains 205678 sequences.